diff options
31 files changed, 625 insertions, 434 deletions
diff --git a/nptl/Makefile b/nptl/Makefile index 8178aba651..bcf97ec0bd 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -23,7 +23,7 @@ subdir := nptl include ../Makeconfig headers := pthread.h semaphore.h bits/semaphore.h threads.h \ - bits/struct_mutex.h + bits/struct_mutex.h bits/struct_rwlock.h extra-libs := libpthread extra-libs-others := $(extra-libs) diff --git a/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h b/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h index 78abd6960b..33c7928bf2 100644 --- a/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h @@ -44,19 +44,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - unsigned int __flags; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/aarch64/nptl/bits/struct_rwlock.h b/sysdeps/aarch64/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..c5ea2b2469 --- /dev/null +++ b/sysdeps/aarch64/nptl/bits/struct_rwlock.h @@ -0,0 +1,41 @@ +/* AArch64 internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + unsigned int __flags; +}; + +#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags + +#endif diff --git a/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h b/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h index b832590d82..09692ab4aa 100644 --- a/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/alpha/nptl/bits/pthreadtypes-arch.h @@ -32,21 +32,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/alpha/nptl/bits/struct_rwlock.h b/sysdeps/alpha/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..32e18a4a4e --- /dev/null +++ b/sysdeps/alpha/nptl/bits/struct_rwlock.h @@ -0,0 +1,43 @@ +/* Alpha internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +}; + +#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags + +#endif diff --git a/sysdeps/arm/nptl/bits/pthreadtypes-arch.h b/sysdeps/arm/nptl/bits/pthreadtypes-arch.h index 5ae7d0d721..339956cfa2 100644 --- a/sysdeps/arm/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/arm/nptl/bits/pthreadtypes-arch.h @@ -33,30 +33,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; -#else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -#endif - int __cur_writer; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/csky/nptl/bits/pthreadtypes-arch.h b/sysdeps/csky/nptl/bits/pthreadtypes-arch.h index 685515724f..4bcc8d7d5b 100644 --- a/sysdeps/csky/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/csky/nptl/bits/pthreadtypes-arch.h @@ -34,28 +34,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -/* Paddings in this structure are not strictly necessary on C-SKY. - They are left for extensibility as most other architecture do so. */ -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - unsigned char __flags; -#else - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -#endif - int __cur_writer; -}; - -#endif +#endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h b/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h index c11add1af8..58e077cb4e 100644 --- a/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h @@ -43,36 +43,4 @@ #define __LOCK_ALIGNMENT __attribute__ ((__aligned__(16))) #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - /* In the old Linuxthreads pthread_rwlock_t, this is the - start of the 4-word 16-byte aligned lock structure. The - next four words are all set to 1 by the Linuxthreads - PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL. */ - int __compat_padding[4] __attribute__ ((__aligned__(16))); - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - int __cur_writer; - /* An unused word, reserved for future use. It was added - to maintain the location of the flags from the Linuxthreads - layout of this structure. */ - int __reserved1; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __pad2; - unsigned char __pad1; - unsigned char __shared; - unsigned char __flags; - /* The NPTL pthread_rwlock_t is 4 words smaller than the - Linuxthreads version. One word is in the middle of the - structure, the other three are at the end. */ - int __reserved2; - int __reserved3; - int __reserved4; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/hppa/nptl/bits/struct_rwlock.h b/sysdeps/hppa/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..5370c7c3bb --- /dev/null +++ b/sysdeps/hppa/nptl/bits/struct_rwlock.h @@ -0,0 +1,58 @@ +/* HPPA internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + /* In the old Linuxthreads pthread_rwlock_t, this is the + start of the 4-word 16-byte aligned lock structure. The + next four words are all set to 1 by the Linuxthreads + PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL. */ + int __compat_padding[4] __attribute__ ((__aligned__(16))); + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + int __cur_writer; + /* An unused word, reserved for future use. It was added + to maintain the location of the flags from the Linuxthreads + layout of this structure. */ + int __reserved1; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __pad2; + unsigned char __pad1; + unsigned char __shared; + unsigned char __flags; + /* The NPTL pthread_rwlock_t is 4 words smaller than the + Linuxthreads version. One word is in the middle of the + structure, the other three are at the end. */ + int __reserved2; + int __reserved3; + int __reserved4; +}; + +#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0, 0, 0 + +#endif diff --git a/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h b/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h index 7a1fd3ed28..e3b8175ea0 100644 --- a/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/ia64/nptl/bits/pthreadtypes-arch.h @@ -32,23 +32,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -/* Data structure for reader-write lock variable handling. The - structure of the attribute type is not exposed on purpose. */ -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/ia64/nptl/bits/struct_rwlock.h b/sysdeps/ia64/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..de991c8dd4 --- /dev/null +++ b/sysdeps/ia64/nptl/bits/struct_rwlock.h @@ -0,0 +1,43 @@ +/* IA64 internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +}; + +#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags + +#endif diff --git a/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h b/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h index 0647c48b5a..fe3ac611f8 100644 --- a/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/m68k/nptl/bits/pthreadtypes-arch.h @@ -34,21 +34,4 @@ #define __LOCK_ALIGNMENT __attribute__ ((__aligned__ (4))) #define __ONCE_ALIGNMENT __attribute__ ((__aligned__ (4))) -struct __pthread_rwlock_arch_t -{ - unsigned int __readers __attribute__ ((__aligned__ (4))); - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - int __cur_writer; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h b/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h index 21b090aaf6..ed2852a018 100644 --- a/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h @@ -34,30 +34,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -# if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; -# else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -# endif - int __cur_writer; -}; - #endif /* bits/pthreadtypes.h. */ diff --git a/sysdeps/mips/nptl/bits/pthreadtypes-arch.h b/sysdeps/mips/nptl/bits/pthreadtypes-arch.h index 5bcc90a7fe..f0f9133df4 100644 --- a/sysdeps/mips/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/mips/nptl/bits/pthreadtypes-arch.h @@ -41,40 +41,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if _MIPS_SIM == _ABI64 - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -# else -# if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; -# else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -# endif - int __cur_writer; -#endif -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/mips/nptl/bits/struct_rwlock.h b/sysdeps/mips/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..93bf7cd442 --- /dev/null +++ b/sysdeps/mips/nptl/bits/struct_rwlock.h @@ -0,0 +1,71 @@ +/* MIPS internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; +#if _MIPS_SIM == _ABI64 + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +# else +# if __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; +# else + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + unsigned char __shared; + unsigned char __pad1; + unsigned char __pad2; +# endif + int __cur_writer; +#endif +}; + +#if _MIPS_SIM == _ABI64 +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags +#else +# if __BYTE_ORDER == __BIG_ENDIAN +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0 +# else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0 +# endif +#endif + +#endif diff --git a/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h b/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h index 7e71f723d0..28d1d84ad8 100644 --- a/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h @@ -34,30 +34,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; -#else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -#endif - int __cur_writer; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/nptl/bits/struct_rwlock.h b/sysdeps/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..bb63028a46 --- /dev/null +++ b/sysdeps/nptl/bits/struct_rwlock.h @@ -0,0 +1,61 @@ +/* Default read-write lock implementation struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef __RWLOCK_INTERNAL_H +#define __RWLOCK_INTERNAL_H + +#include <bits/endian.h> + +/* Generic struct for both POSIX read-write lock. New ports are expected + to use the default layout, however archictetures can redefine it to add + arch-specific extensions (such as lock-elision). The struct have a size + of 32 bytes on both LP32 and LP64 architectures. */ + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + /* FLAGS must stay at its position in the structure to maintain + binary compatibility. */ +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + unsigned char __flags; +#else + unsigned char __flags; + unsigned char __shared; + unsigned char __pad1; + unsigned char __pad2; +#endif + int __cur_writer; +}; + +#if __BYTE_ORDER == __BIG_ENDIAN +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0 +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0 +#endif + +#endif diff --git a/sysdeps/nptl/bits/thread-shared-types.h b/sysdeps/nptl/bits/thread-shared-types.h index 0727fdec96..a409fa78a8 100644 --- a/sysdeps/nptl/bits/thread-shared-types.h +++ b/sysdeps/nptl/bits/thread-shared-types.h @@ -39,10 +39,7 @@ Same idea but for the once locking primitive: - __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition. - - And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t) - must be defined. */ + __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition. */ #include <bits/pthreadtypes-arch.h> @@ -76,6 +73,19 @@ typedef struct __pthread_internal_slist #include <bits/struct_mutex.h> +/* Arch-sepecific read-write lock definitions. A generic implementation is + provided by struct_rwlock.h. If required, an architecture can override it + by defining: + + 1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition). + It should contain at least the internal members defined in the + generic version. + + 2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization. + It should initialize the rwlock internal type. */ + +#include <bits/struct_rwlock.h> + /* Common definition of pthread_cond_t. */ diff --git a/sysdeps/nptl/pthread.h b/sysdeps/nptl/pthread.h index e673e3f4fc..a503b09993 100644 --- a/sysdeps/nptl/pthread.h +++ b/sysdeps/nptl/pthread.h @@ -105,34 +105,13 @@ enum PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP }; -/* Define __PTHREAD_RWLOCK_INT_FLAGS_SHARED to 1 if pthread_rwlock_t - has the shared field. All 64-bit architectures have the shared field - in pthread_rwlock_t. */ -#ifndef __PTHREAD_RWLOCK_INT_FLAGS_SHARED -# if __WORDSIZE == 64 -# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1 -# endif -#endif /* Read-write lock initializers. */ # define PTHREAD_RWLOCK_INITIALIZER \ - { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } + { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_DEFAULT_NP) } } # ifdef __USE_GNU -# ifdef __PTHREAD_RWLOCK_INT_FLAGS_SHARED -# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ - { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ - PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } } -# else -# if __BYTE_ORDER == __LITTLE_ENDIAN -# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ - { { 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, \ - 0, 0, 0, 0 } } -# else -# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ - { { 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\ - 0 } } -# endif -# endif +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP) } } # endif #endif /* Unix98 or XOpen2K */ diff --git a/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h b/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h index 429d42d77d..eff60d6306 100644 --- a/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h @@ -41,31 +41,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __WORDSIZE == 64 - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -#else - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - int __cur_writer; -#endif -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/powerpc/nptl/bits/struct_rwlock.h b/sysdeps/powerpc/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..ee457b0bfa --- /dev/null +++ b/sysdeps/powerpc/nptl/bits/struct_rwlock.h @@ -0,0 +1,61 @@ +/* PowerPC internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; +#if __WORDSIZE == 64 + int __cur_writer; + int __shared; + unsigned char __rwelision; + unsigned char __pad1[7]; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +# define __PTHREAD_RWLOCK_ELISION_EXTRA 0, {0, 0, 0, 0, 0, 0, 0 } +#else + unsigned char __rwelision; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + int __cur_writer; +# define __PTHREAD_RWLOCK_ELISION_EXTRA 0 +#endif +}; + +#if __WORDSIZE == 64 +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, __PTHREAD_RWLOCK_ELISION_EXTRA, 0, __flags +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, __PTHREAD_RWLOCK_ELISION_EXTRA, 0, 0, __flags, 0 +#endif + +#endif diff --git a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h index 31f46ecbde..330c302fd2 100644 --- a/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/riscv/nptl/bits/pthreadtypes-arch.h @@ -38,23 +38,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -/* There is a lot of padding in this structure. While it's not strictly - necessary on RISC-V, we're going to leave it in to be on the safe side in - case it's needed in the future. Most other architectures have the padding, - so this gives us the same extensibility as everyone else has. */ -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - unsigned int __flags; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/riscv/nptl/bits/struct_rwlock.h b/sysdeps/riscv/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..65a094eedc --- /dev/null +++ b/sysdeps/riscv/nptl/bits/struct_rwlock.h @@ -0,0 +1,45 @@ +/* RISC-V internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +/* There is a lot of padding in this structure. While it's not strictly + necessary on RISC-V, we're going to leave it in to be on the safe side in + case it's needed in the future. Most other architectures have the padding, + so this gives us the same extensibility as everyone else has. */ +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + unsigned int __flags; +}; + +#define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags + +#endif diff --git a/sysdeps/s390/nptl/bits/pthreadtypes-arch.h b/sysdeps/s390/nptl/bits/pthreadtypes-arch.h index 5fd32ba756..99f27d3fd0 100644 --- a/sysdeps/s390/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/s390/nptl/bits/pthreadtypes-arch.h @@ -40,31 +40,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __WORDSIZE == 64 - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -# else - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - int __cur_writer; -#endif -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/s390/nptl/bits/struct_rwlock.h b/sysdeps/s390/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..5adad874a3 --- /dev/null +++ b/sysdeps/s390/nptl/bits/struct_rwlock.h @@ -0,0 +1,58 @@ +/* S390 internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; +#if __WORDSIZE == 64 + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +# else + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + int __cur_writer; +#endif +}; + +#if __WORDSIZE == 64 +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0 +#endif + +#endif diff --git a/sysdeps/sh/nptl/bits/pthreadtypes-arch.h b/sysdeps/sh/nptl/bits/pthreadtypes-arch.h index ec861133ca..dd70a5d4fd 100644 --- a/sysdeps/sh/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/sh/nptl/bits/pthreadtypes-arch.h @@ -33,30 +33,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __BYTE_ORDER == __BIG_ENDIAN - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; -#else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; -#endif - unsigned long int __cur_writer; -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h b/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h index 4cda2376d2..8ea295d0a0 100644 --- a/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h @@ -42,31 +42,4 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#if __WORDSIZE == 64 - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -#else - unsigned char __pad1; - unsigned char __pad2; - unsigned char __shared; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - int __cur_writer; -#endif -}; - #endif /* bits/pthreadtypes.h */ diff --git a/sysdeps/sparc/nptl/bits/struct_rwlock.h b/sysdeps/sparc/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..8d3e799f46 --- /dev/null +++ b/sysdeps/sparc/nptl/bits/struct_rwlock.h @@ -0,0 +1,58 @@ +/* SPARC internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; +#if __WORDSIZE == 64 + int __cur_writer; + int __shared; + unsigned long int __pad1; + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +#else + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + int __cur_writer; +#endif +}; + +#if __WORDSIZE == 64 +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, 0, __flags, 0 +#endif + +#endif diff --git a/sysdeps/unix/sysv/linux/hppa/pthread.h b/sysdeps/unix/sysv/linux/hppa/pthread.h index 3d1e7f3a45..61e5426712 100644 --- a/sysdeps/unix/sysv/linux/hppa/pthread.h +++ b/sysdeps/unix/sysv/linux/hppa/pthread.h @@ -104,23 +104,13 @@ enum PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP }; -/* Define __PTHREAD_RWLOCK_INT_FLAGS_SHARED to 1 if pthread_rwlock_t - has the shared field. All 64-bit architectures have the shared field - in pthread_rwlock_t. */ -#ifndef __PTHREAD_RWLOCK_INT_FLAGS_SHARED -# if __WORDSIZE == 64 -# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1 -# endif -#endif - /* Read-write lock initializers. */ # define PTHREAD_RWLOCK_INITIALIZER \ - { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } + { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_DEFAULT_NP) } } # ifdef __USE_GNU # define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ - { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ - PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, 0, 0, 0 } } + { { __PTHREAD_RWLOCK_INITIALIZER (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP) } } # endif #endif /* Unix98 or XOpen2K */ diff --git a/sysdeps/x86/nptl/bits/pthreadtypes-arch.h b/sysdeps/x86/nptl/bits/pthreadtypes-arch.h index 668ec4a5d5..426a20751d 100644 --- a/sysdeps/x86/nptl/bits/pthreadtypes-arch.h +++ b/sysdeps/x86/nptl/bits/pthreadtypes-arch.h @@ -50,34 +50,6 @@ #define __LOCK_ALIGNMENT #define __ONCE_ALIGNMENT -struct __pthread_rwlock_arch_t -{ - unsigned int __readers; - unsigned int __writers; - unsigned int __wrphase_futex; - unsigned int __writers_futex; - unsigned int __pad3; - unsigned int __pad4; -#ifdef __x86_64__ - int __cur_writer; - int __shared; - unsigned long int __pad1; - unsigned long int __pad2; - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned int __flags; -# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1 -#else - /* FLAGS must stay at this position in the structure to maintain - binary compatibility. */ - unsigned char __flags; - unsigned char __shared; - unsigned char __pad1; - unsigned char __pad2; - int __cur_writer; -#endif -}; - #ifndef __x86_64__ /* Extra attributes for the cleanup functions. */ # define __cleanup_fct_attribute __attribute__ ((__regparm__ (1))) diff --git a/sysdeps/x86/nptl/bits/struct_rwlock.h b/sysdeps/x86/nptl/bits/struct_rwlock.h new file mode 100644 index 0000000000..7f4728ec84 --- /dev/null +++ b/sysdeps/x86/nptl/bits/struct_rwlock.h @@ -0,0 +1,65 @@ +/* x86 internal rwlock struct definitions. + Copyright (C) 2019 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _RWLOCK_INTERNAL_H +#define _RWLOCK_INTERNAL_H + +struct __pthread_rwlock_arch_t +{ + unsigned int __readers; + unsigned int __writers; + unsigned int __wrphase_futex; + unsigned int __writers_futex; + unsigned int __pad3; + unsigned int __pad4; +#ifdef __x86_64__ + int __cur_writer; + int __shared; + signed char __rwelision; +# ifdef __ILP32__ + unsigned char __pad1[3]; +# define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0 } +# else + unsigned char __pad1[7]; +# define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0, 0, 0, 0, 0 } +# endif + unsigned long int __pad2; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; +#else /* __x86_64__ */ + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + unsigned char __shared; + signed char __rwelision; + unsigned char __pad2; + int __cur_writer; +#endif +}; + +#ifdef __x86_64__ +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, 0, 0, __PTHREAD_RWLOCK_ELISION_EXTRA, 0, __flags +#else +# define __PTHREAD_RWLOCK_INITIALIZER(__flags) \ + 0, 0, 0, 0, 0, 0, __flags, 0, 0, 0, 0 +#endif + +#endif |